103 



Lima pellucida. L. t. tenuissima, hyalina, costulis quadra- 

 ginta tenuissimis instructa. 



Long. .41 ; alt. .63 ; lat. .25 poll. L. Loscomhii, Sowb., afE- 

 nis. Hab. Jamaica. 



Dr. Gould read a letter from Prof. James Hall, announcing 

 that he had in his possession a fossil skull of a large Rodent, 

 found in Wayne county, New York, which he proposed to 

 describe and offer the description to this Society. 



Dr. D. H. Storer laid upon the table a Synopsis of the 

 Fishes of the State of Ohio, prepared from the papers of 

 Prof. J. P. Kirtland, published in the Journal of this Society. 



Dr. S. remarked that, as this series of descriptions is now com- 

 pleted, it had become desirable to know their results, and these he 

 had endeavored to exhibit in the paper now offered. Besides 

 being a synopsis of the families, genera and species of the fishes 

 of that State, so far as they are at present known, he had given 

 to it the character of an index, by appending to it a reference to 

 the volume and page of the Journal where the description of each 

 species may be found. He hoped thus to abridge the labors of 

 the student, who would otherwise be obliged to extend his search 

 through eleven different numbers of the Journal. 



FERCIDiE. 



Perca flavescens, . 

 Etheostoma variata, 

 " maculata. 



" caprodes, . 



" blennioides, 



Labrax multilinealus, . 

 Lucioperca americana, 

 Cenlrarchas hexacanthus, 

 " aeneus, 



" fasciatus, . 



Pomolis macrochira, 

 " vulgaris, 

 " nitida. 



TRIGLID^. 



Cottus gobio, . 

 Gasterosteus inconstans, 



SCIENID^. 



Corvina oscula, . . . III. 350. VI. 



